(1)A term told to some semi-conscious asshole, usually at work, when all they do is bitch, moan and complain about their job.
(2) A suggestion to someone who cannot seem for the life of them to get over a significant other.

Cheese Dick: "I can't believe they are making me unload the truck again. Don't they know my shoulder hurts? All they do here is take advantage of my good nature."
Co-Worker: "First of all you are an asshole. Seriously,move the fuck on because they don't give a shit about you and especially not your hurt shoulder, you useless Turd.

Cheese Dick: "I can't believe she's dating that guy. What does she see in him?"
Co-Worker: "Move the fuck on moron. The point is, is that she doesn't have to see you when she's screwing her way through your list of friends.

(1) A sensible reply to some idiot who through fault entirely of their own, bitches, moans and complains just about everything imaginable.

(2) A last gasp, desperate response to a fucking moron who you do not, will not or ever want to be associated with again. Ever.

Cheese Dick: "I can't believe that he stormed out like that. I only went to management because I thought his idea of humor was in poor taste."
You: "Hey, Cheeser D, that was a year ago. Move the fuck on. Man, you are one useless piece of shit."

Cheese Dick: "Doesn't this place suck? I am so ready to quit. My hours suck. My shoulder hurts. I don't want to unload the truck anymore."
You: "Move the fuck on then. I just quit because I know it blows, but you don't hear me bitching, you see me leaving. Get fucked!"